Abstract: A flat fluorescent lamp which includes: a long rectangular shaped light guiding panel, a light-emitting module, a light guiding body, a reflective layer, and at least one light-emitting diode. The light guiding body seamlessly connects between an end surface of the light guiding panel and the light-emitting module. The reflective layer is located exterior of the light guiding panel. A Coupling head is installed on the side of the light-emitting module that is away from the light guiding panel, and the coupling head is connected to the light-emitting module. Thereby, an energy efficient fluorescent lamp that can be thinner and installed on general lamp socket is provided.

Abstract: The present invention discloses a heat conductive composite substrate having heat dissipation properties and a manufacturing method thereof. The heat conductive composite substrate comprises a heat dissipation substrate and a metal diamond composite layer physically disposed on the heat dissipation substrate for passing heat energy to the heat dissipation substrate. The metal diamond composite layer is a growth substance including at least one kind metal, and the growth substance is distributed with plural diamond particles therein.

Abstract: A multi-stage fastening structure comprises an extension rod, a plurality of locking devices, and two fastening devices. A lateral retaining plate is formed at each end of the extension rod. A first flange and a second flange having different outer diameters from each other are formed on each of the locking devices. Each of the fastening devices comprises a sliding plate and a fastener. The sliding plate comprises: a locking part formed by bending the sliding plate; a trench formed on the sliding plate; a track mounted on each side of the trench; and a plurality of through holes formed on the sliding plate in front of the trench. The fastener comprises: a slideway on each side; an inward retaining plate on one edge of the fastener; a fingerboard on the other edge of the fastener; and a locking pawl formed on the bottom of the fastener near the fingerboard.

Abstract: A rotary-type fastening structure for fixedly coupling an extension rod with a coupling plate, having a rotatable fastening device in the form of a main body with an off-center shaft hole. The rotatable fastening device can be rotated off-center so as to lean its lateral edge on the coupling plate and selectively secure the extension bar to the coupling plate.

Abstract: A disk brake having supporting ribs radially spirally connected between a center coupling portion and an annular friction face thereof and equiangularly spaced from one another, the supporting ribs each having two opposite lateral sidewalls axially sloping in one direction and respectively curved inwards, the friction face having radially spirally extended rows of guide holes for guiding out dust upon friction between the disk brake and the wheel.

Abstract: A computer mainframe and display arrangement is constructed to include a mainframe for personal computer, the mainframe having a locating slot in one recessed side panel thereof, and a display fastened pivotally with the mainframe, the display having a locating block fixedly provided at a back sidewall thereof, a coupling plate fastened pivotally with the locating block and forced into engagement with the locating slot of the mainframe to pivotally secure the display to the mainframe, and a foldaway stand pivoted to the locating block and adapted to support the display on the mainframe in a tilted position.

Abstract: An internal heat sinks construction for CPU cabinet at least comprises the cooling fans installed on the front wall and the rear wall of the cabinet casing. The front wall provides an air intake under the hard disk rack. The rear wall provides an air guide shield including one air intake and two air vents. There mounts a cooling in the vicinity of the air vents. The air guide shield further provides the air vent for the CPU heat fins and slots respectively so the airflow will cool them down independently. The cooling devices so arranged on the front wall and the rear wall offer a cooling airflow to effectively disperse the heat generated within CPU. The rear wall will produce air convection. This cooling system renders powerful and energetic airflow and convection to cool down the internal parts inside CPU rapidly.

Abstract: A disk brake having supporting ribs radially spirally connected between a center coupling portion and an annular friction face thereof and equiangularly spaced from one another, the supporting ribs each having two opposite lateral sidewalls axially sloping in one direction and respectively curved inwards, the friction face having radially spirally extended rows of guide holes for guiding out dust upon friction between the disk brake and the wheel.